mirror of
https://github.com/moparisthebest/Yaaic
synced 2024-08-13 16:53:50 -04:00
9c551d73bf
Indicator showing the state of the current pages and off-screen pages by coloring.
85 lines
2.9 KiB
Java
85 lines
2.9 KiB
Java
/*
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* Copyright (C) 2012 Sebastian Kaspari
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package org.yaaic.adapter;
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import android.support.v4.view.PagerAdapter;
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import android.support.v4.view.ViewPager;
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import android.view.View;
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import android.view.ViewGroup;
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/**
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* Implementation of {@link PagerAdapter} that represents each page as a {@link View}.
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*
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* @author Sebastian Kaspari <s.kaspari@gmail.com>
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*/
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public abstract class ViewPagerAdapter extends PagerAdapter
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{
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/**
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* Get a View that displays the data at the specified position in the data set.
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*
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* @param position The position of the item within the adapter's data set of the item whose view we want.
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* @param pager The ViewPager that this view will eventually be attached to.
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*
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* @return A View corresponding to the data at the specified position.
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*/
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public abstract View getView(int position, ViewPager pager);
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/**
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* Determines whether a page View is associated with a specific key object as
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* returned by instantiateItem(ViewGroup, int).
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*
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* @param view Page View to check for association with object
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* @param object Object to check for association with view
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*
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* @return true if view is associated with the key object object.
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*/
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@Override
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public boolean isViewFromObject(View view, Object object) {
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return view == object;
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}
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/**
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* Create the page for the given position.
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*
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* @param container The containing View in which the page will be shown.
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* @param position The page position to be instantiated.
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*
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* @return Returns an Object representing the new page. This does not need
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* to be a View, but can be some other container of the page.
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*/
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@Override
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public Object instantiateItem(ViewGroup container, int position) {
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ViewPager pager = (ViewPager) container;
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View view = getView(position, pager);
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pager.addView(view);
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return view;
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}
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/**
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* Remove a page for the given position.
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*
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* @param container The containing View from which the page will be removed.
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* @param position The page position to be removed.
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* @param view The same object that was returned by instantiateItem(View, int).
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*/
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@Override
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public void destroyItem(ViewGroup container, int position, Object view) {
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((ViewPager) container).removeView((View) view);
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}
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}
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